64536520466 has 16 divisors (see below), whose sum is σ = 105965653248. Its totient is φ = 29234660400.

The previous prime is 64536520439. The next prime is 64536520513. The reversal of 64536520466 is 66402563546.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 64536520466.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4999490 + ... + 5012381.

It is an arithmetic number, because the mean of its divisors is an integer number (6622853328).

Almost surely, 2^64536520466 is an apocalyptic number.

64536520466 is a deficient number, since it is larger than the sum of its proper divisors (41429132782).

64536520466 is a wasteful number, since it uses less digits than its factorization.

64536520466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10012177.

The product of its (nonzero) digits is 3110400, while the sum is 47.

The spelling of 64536520466 in words is "sixty-four billion, five hundred thirty-six million, five hundred twenty thousand, four hundred sixty-six".